Even before the ink dries on a controversial new gun-control decision by the San Francisco-based 9th District Court of Appeals, firearms advocates are preparing to push it to the U.S. Supreme Court because it appears to rewrite the Second Amendment.

In deciding Young v. State of Hawaii, the split court Wednesday decided that openly carrying a handgun is not constitutionally protected outside an owner’s house, a very limited opinion that challenges several states that allow open and concealed carry.